Energy absorbent fan blade spacer

摘要

A gas turbine engine fan assembly includes a rotor disk, a fan blade and a spacer. The rotor disk includes a longitudinally extending slot with a first spacer contact surface. The fan blade includes a root with a second spacer contact surface arranged within the slot. The spacer includes a leaf spring backbone and a compliant member. The leaf spring backbone includes one or more root contact segments connected longitudinally to one or more slot contact segments. A first of the root contact segments contacts the second spacer contact surface, and a first of the slot contact segments contacts the first spacer contact surface. The compliant member is radially between the first spacer contact surface and the first root contact segment, and radially between the second spacer contact surface and the first slot contact segment.

主权项

1. A gas turbine engine fan assembly, comprising:
a rotor disk comprising a longitudinally extending slot comprising a first spacer contact surface; a fan blade comprising a root arranged within the slot, the root comprising a second spacer contact surface; a spacer comprising
leaf spring backbone comprising a root contact segment longitudinally between a first slot contact segment and a second slot contact segment, wherein the root contact segment contacts the second spacer contact surface, and the first and the second slot contact segments contact the first spacer contact surface; anda compliant member radially between the first spacer contact surface and the root contact segment, and radially between the second spacer contact surface and the first and the second slot contact segments.